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https://issues.apache.org/jira/browse/FLINK-4565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15892519#comment-15892519
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ASF GitHub Bot commented on FLINK-4565:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/2870#discussion_r103963098
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/codegen/calls/ScalarOperators.scala
---
@@ -79,6 +79,72 @@ object ScalarOperators {
}
}
+ def generateIn(
+ nullCheck: Boolean,
+ left: GeneratedExpression,
+ right: scala.collection.mutable.Buffer[GeneratedExpression],
+ addReusableCodeCallback: (String, String) => Any)
+ : GeneratedExpression = {
+ val resultTerm = newName("result")
+ val isNull = newName("isNull")
+
+ val topNumericalType: Option[TypeInformation[_]] = {
--- End diff --
IMHO, calculating the top numerical type seems not too specific to me.
> Support for SQL IN operator
> ---------------------------
>
> Key: FLINK-4565
> URL: https://issues.apache.org/jira/browse/FLINK-4565
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Dmytro Shkvyra
>
> It seems that Flink SQL supports the uncorrelated sub-query IN operator. But
> it should also be available in the Table API and tested.
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